A question about uploading files to an FTP server using FluentFTP

First of all, thank you for making tusdotnet project to provide dotnet developers with the ability of using Tus.

I am using tusdotnet in my asp.net core 3.1 project with uppy and react and I have a question about uploading files to an FTP server with FluentFTP.

I can connect to my FTP server through FluentFTP and upload files like this:

using FluentFTP;

// creating FTP client
FtpClient client = new FtpClient(_baseUri, _port, _username, _password);
// Connecting to the FTP server
await client.ConnectAsync();

using (var stream = file.OpenReadStream())
{
     ...
     // Uploading file to the FTP server
     var ftpStatus = await client.UploadAsync(stream, fileRelativePath);

   ...

}

 // disconnect!
await client.DisconnectAsync();

I have read some articles in wiki of tusdotnet repo about its interfaces. If I should change any implementation please explain which methods need to be changed in new implementation and how could I make tusdotnet to use new implementation instead of its default implementation.

The question is, how can I use tusdotnet in a way that I can upload files directly to the FTP server using FluentFTP?

Thank you in advance…

[jkoplo]

I’m actually doing something similar - in my case using tus as an upload protocol for embedded controllers on an Edge server and then FTPing received files to a final destination on a different server. I hadn’t considered creating an FTP backend for tusdotnet, but I don’t think I’d want to. In my scenario it’s better to collect files on the edge server if the network is down.

My strategy is this:

1. On receiving a file (OnFileCompleteAsync) I add the fileid to an SQLite database that keeps track of files to be transferred to FTP.
2. I have a background worker service that periodically queries the SQLite database to see if there are any files that need to be transferred.
3. I use FluentFTP to execute a transfer process. In my case this involves uploading, downloading, checking that the files match and then deleting the file from the TusDiskStore and removing it from my SQLite database.

That may or may not suit your needs, but I’ve had good success with it thus far in dev.

[smatsson]

Hi!

What you are looking for is a custom store so start by reading this article: https://github.com/tusdotnet/tusdotnet/wiki/Custom-data-store

The interfaces that your store need to implement depends on what extensions from the tus protocol you need as each interface represent an extension.

As a baseline you need to implement ITusStore to have support for the core protocol and probably also ITusCreationStore to be able to create new files.

Then pass your own store to the setup of tusdotnet:

app.UseTus(httpContext => new DefaultTusConfiguration
{
    Store = new YourCustomStore(), // <-- replace with an instance of your store
    UrlPath = "/files"
});